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Title: Multiwavelength polarization-insensitive lenses based on dielectric metasurfaces with meta-molecules

Metasurfaces are nanostructured devices composed of arrays of subwavelength scatterers (or meta-atoms) that manipulate the wavefront, polarization, or intensity of light. Like most other diffractive optical devices, metasurfaces are designed to operate optimally at one wavelength. Here in this paper, we present a method for designing multiwavelength metasurfaces using unit cells with multiple meta-atoms, or meta-molecules. A transmissive lens that has the same focal distance at 1550 and 915 nm is demonstrated. The lens has a NA of 0.46 and measured focusing efficiencies of 65% and 22% at 1550 and 915 nm, respectively. With proper scaling, these devices can be used in applications where operation at distinct known wavelengths is required, like various fluorescence microscopy techniques.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States). T. J. Watson Lab. of Applied Physics
Publication Date:
Grant/Contract Number:
SC0001293
Type:
Accepted Manuscript
Journal Name:
Optica
Additional Journal Information:
Journal Volume: 3; Journal Issue: 6; Related Information: LMI partners with California Institute of Technology (lead); Harvard University; University of Illinois, Urbana-Champaign; Lawrence Berkeley National Laboratory; Journal ID: ISSN 2334-2536
Publisher:
Optical Society of America
Research Org:
Energy Frontier Research Centers (EFRC) (United States). Light-Material Interactions in Energy Conversion (LMI)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); Defense Advanced Research Projects Agency (DARPA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1387927

Arbabi, Ehsan, Arbabi, Amir, Kamali, Seyedeh Mahsa, Horie, Yu, and Faraon, Andrei. Multiwavelength polarization-insensitive lenses based on dielectric metasurfaces with meta-molecules. United States: N. p., Web. doi:10.1364/OPTICA.3.000628.
Arbabi, Ehsan, Arbabi, Amir, Kamali, Seyedeh Mahsa, Horie, Yu, & Faraon, Andrei. Multiwavelength polarization-insensitive lenses based on dielectric metasurfaces with meta-molecules. United States. doi:10.1364/OPTICA.3.000628.
Arbabi, Ehsan, Arbabi, Amir, Kamali, Seyedeh Mahsa, Horie, Yu, and Faraon, Andrei. 2016. "Multiwavelength polarization-insensitive lenses based on dielectric metasurfaces with meta-molecules". United States. doi:10.1364/OPTICA.3.000628. https://www.osti.gov/servlets/purl/1387927.
@article{osti_1387927,
title = {Multiwavelength polarization-insensitive lenses based on dielectric metasurfaces with meta-molecules},
author = {Arbabi, Ehsan and Arbabi, Amir and Kamali, Seyedeh Mahsa and Horie, Yu and Faraon, Andrei},
abstractNote = {Metasurfaces are nanostructured devices composed of arrays of subwavelength scatterers (or meta-atoms) that manipulate the wavefront, polarization, or intensity of light. Like most other diffractive optical devices, metasurfaces are designed to operate optimally at one wavelength. Here in this paper, we present a method for designing multiwavelength metasurfaces using unit cells with multiple meta-atoms, or meta-molecules. A transmissive lens that has the same focal distance at 1550 and 915 nm is demonstrated. The lens has a NA of 0.46 and measured focusing efficiencies of 65% and 22% at 1550 and 915 nm, respectively. With proper scaling, these devices can be used in applications where operation at distinct known wavelengths is required, like various fluorescence microscopy techniques.},
doi = {10.1364/OPTICA.3.000628},
journal = {Optica},
number = 6,
volume = 3,
place = {United States},
year = {2016},
month = {6}
}